package cn.source.web.controller.common;

import cn.source.common.config.RuoYiConfig;
import cn.source.common.constant.Constants;
import cn.source.common.core.domain.AjaxResult;
import cn.source.common.core.redis.RedisCache;
import cn.source.common.utils.sign.Base64;
import cn.source.common.utils.sms.DySmsUtil;
import cn.source.common.utils.uuid.CodeUtil;
import cn.source.common.utils.uuid.IdUtils;
import cn.source.system.service.ISysConfigService;
import com.alibaba.fastjson2.JSONObject;
import com.google.code.kaptcha.Producer;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.util.FastByteArrayOutputStream;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.annotation.Resource;
import javax.imageio.ImageIO;
import javax.servlet.http.HttpServletResponse;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.util.concurrent.TimeUnit;

/**
 * 验证码操作处理
 *
 * @author ruoyi
 */
@RestController
public class CaptchaController {

  private static final Logger logger = LoggerFactory.getLogger(CaptchaController.class);

  @Resource(name = "captchaProducer")
  private Producer captchaProducer;

  @Resource(name = "captchaProducerMath")
  private Producer captchaProducerMath;

  @Autowired private RedisCache redisCache;

  @Autowired private ISysConfigService configService;

  @Value("${sms.id}")
  private String accessKeyId;

  @Value("${sms.pwd}")
  private String accessKeySecret;

  @Value("${sms.template}")
  private String accessKeytemplate;

  /** 生成验证码 */
  @GetMapping("/captchaImage")
  public AjaxResult getCode(HttpServletResponse response) throws IOException {
    AjaxResult ajax = AjaxResult.success();
    boolean captchaOnOff = configService.selectCaptchaOnOff();
    ajax.put("captchaOnOff", captchaOnOff);
    if (!captchaOnOff) {
      return ajax;
    }

    // 保存验证码信息
    String uuid = IdUtils.simpleUUID();
    String verifyKey = Constants.CAPTCHA_CODE_KEY + uuid;

    String capStr = null, code = null;
    BufferedImage image = null;

    // 生成验证码
    String captchaType = RuoYiConfig.getCaptchaType();
    if ("math".equals(captchaType)) {
      String capText = captchaProducerMath.createText();
      capStr = capText.substring(0, capText.lastIndexOf("@"));
      code = capText.substring(capText.lastIndexOf("@") + 1);
      image = captchaProducerMath.createImage(capStr);
    } else if ("char".equals(captchaType)) {
      capStr = code = captchaProducer.createText();
      image = captchaProducer.createImage(capStr);
    }

    redisCache.setCacheObject(verifyKey, code, Constants.CAPTCHA_EXPIRATION, TimeUnit.MINUTES);
    // 转换流信息写出
    FastByteArrayOutputStream os = new FastByteArrayOutputStream();
    try {
      ImageIO.write(image, "jpg", os);
    } catch (IOException e) {
      return AjaxResult.error(e.getMessage());
    }

    ajax.put("uuid", uuid);
    ajax.put("img", Base64.encode(os.toByteArray()));
    return ajax;
  }

  /** 获取发送手机验证码 */
  @GetMapping(value = "/api/captchaSms")
  public AjaxResult captchaSms(String loginName) {
    AjaxResult ajax = AjaxResult.success();
    boolean send = false;
    // 当验证码失效才进行操作
    if (redisCache.getCacheObject(loginName) == null) {
      String code = CodeUtil.getCapthCode();
      // 将验证码限制参数放到缓存里 10分钟过期，10分钟后才能再次发短信
      redisCache.setCacheObject(loginName, code, 10, TimeUnit.MINUTES);
      JSONObject obj = new JSONObject();
      obj.put("code", code);
      // logger.info(code);
      // 云信短信
      DySmsUtil.sendSms(loginName, obj, accessKeyId, accessKeySecret, accessKeytemplate);
      send = true;
    } else {
      send = false;
    }
    ajax.put("send", send);
    return ajax;
  }
}
